MVO Algorithm

[Swenchao]

Hello everyone,
When i try to use MVO Algorithm I have some puzzles.
In the function of "RouletteWheelSelection", it always return 0 or -1. In addition, after the following processing, the value of White_hole_index can only be 0.
"
if White_hole_index == -1:
White_hole_index = 0
White_hole_index = 0
"
I tried to modify according to my understanding, but I don’t know if it is reasonable. Please check the request.